“An adult male described as medically stable was taken to an area hospital for assessment.”

The New York Times spoke to a representative of West, who said he was taken willingly to UCLA Medical Center for evaluation. The episode was first reported by NBC News. Reports in US media suggested he was suffering from sleep deprivation.

West’s mother-in-law, Kris Jenner, said he was “exhausted” after a “gruelling tour”.

She spoke to reporters at the Angel Ball in New York shortly before news broke about her son-in-law’s reported hospital treatment.

Addressing why West had cancelled his tour, Jenner told US TV show Extra: “He’s exhausted, he’s just really tired. He’s had a gruelling tour and it’s been a grind so he just needs some rest.”